CN211395367U - Bridge anticollision railing - Google Patents

Abstract

The utility model provides an anti-collision railing for a bridge, which comprises a vertical column, a steel wire mesh, an elastic material, a steel strand, a steel strand anchoring device and a top rod; The bottom is fixed on the bridge deck pavement layer, and the tops of the columns are connected in turn through the top rod; the part of the column above the bridge deck pavement layer is arc-shaped and bent to the inside of the bridge; the steel wire mesh is divided into inner steel wires Net and outer steel mesh, the bottom end of the inner steel mesh is fixed on the bottom end of each column, the top of the inner steel mesh is fixed on the top of each column; the outer steel mesh is fixed on the inner surface of each column from the bottom end to the top, so The elastic material is filled in the accommodating space between the inner wire mesh and the outer wire mesh; the steel strand is connected to each upright in sequence, and both ends are fixed on the steel strand anchoring device. The bridge anti-collision railing of the utility model eliminates the collision force of the vehicle through multiple buffers, and has good anti-collision effect.

Description

A bridge anti-collision railing

technical field

The utility model belongs to the technical field of anti-collision guardrails, in particular to an anti-collision railing for bridges.

Background technique

Bridges are generally built across river valleys, so the bridge guardrail is generally a river or a canyon. The increasing number of vehicles on roads and bridges has brought huge hidden dangers to road traffic safety. Once the vehicles run out of control and hit the bridge guardrail, it is likely to cause immeasurable damage to the overall structure of the bridge. The existing bridge anti-collision railings are usually concrete railings. When the vehicle is unstable and hits the guardrail, it completely relies on its rigidity to block the out-of-control vehicle, which is not only extremely detrimental to the safety of the personnel on the vehicle, but also easily causes damage to the bridge structure.

Utility model content

The technical problem to be solved by the utility model is to provide a bridge anti-collision railing against the above deficiencies in the prior art, which can effectively eliminate the collision force of vehicles and achieve a good anti-collision effect.

The utility model is realized through the following technical solutions:

An anti-collision railing for a bridge, comprising a column, a steel wire mesh, an elastic material, a steel strand, a steel strand anchoring device and a top rod;

A plurality of uprights are arranged on one side of the bridge in sequence along the longitudinal bridge direction, the bottoms of the uprights are fixed on the bridge, and the tops of the uprights are connected in turn by the top rods; the part of the uprights above the bridge is arc-shaped and curved toward the inside of the bridge ;

The steel mesh is divided into an inner steel mesh and an outer steel mesh. The bottom end of the inner steel mesh is fixed to the bottom end of each column, and the top end of the inner steel mesh is fixed to the top of each column. The outer steel mesh is fixed from the bottom to the top. On the inner side of each column, an accommodation space is formed between the inner wire mesh and the outer wire mesh, and the elastic material is filled in the accommodation space between the inner wire mesh and the outer wire mesh;

A plurality of the steel strands are arranged, each steel strand is connected to each upright column in turn, and both ends of the steel strand are fixed on the steel strand anchoring device.

Preferably, it also includes a rear brace and a concrete block;

The concrete block is arranged on the pavement layer of the bridge deck and is located outside the column. One end of the rear strut is connected to the column, and the other end is connected to the pre-embedded connector of the concrete block embedded in the concrete block.

Further, it also includes a signal transmitting device and a pressure sensor; the pressure sensor is used to collect the pressure transmitted by the embedded connector of the concrete block, and transmit the collected pressure signal to the signal transmitting device, and the signal transmitting device transmits an early warning according to the received pressure signal. signal to the alarm.

Further, the pressure sensor is arranged under the pre-embedded connecting piece of the concrete block.

Further, a solar charging board is also included, and the solar charging board is used to provide power for the pressure sensor and the signal transmitting device.

Further, the signal transmitting device is controlled by an STM32F429 single-chip microcomputer.

Further, the signal transmitting device is arranged at the mid-span position of the bridge.

Preferably, the elastic material is rubber or plastic.

Preferably, the bottom of the column is bolted to the bridge deck pavement through the pre-embedded column bolts pre-buried in the bridge deck, and the cast-in-place concrete is covered above the column pre-embedded bolts.

Preferably, a plurality of reserved openings are arranged on the column from bottom to top at intervals, the number of steel strands is the same as the number of reserved openings on a single column, and the two are in one-to-one correspondence, and each steel strand passes through in turn The corresponding reserved openings of each column are anchored to the steel strand anchoring device through the steel strand anchoring device.

Compared with the prior art, the utility model has the following beneficial technical effects:

The bridge anti-collision railing of the utility model has a certain flexibility. When the vehicle is out of control, first the steel mesh will consume part of the vehicle's impact kinetic energy, and then the elastic material will absorb part of the energy, and then the plastic deformation of the column and the steel strand will be used. Most of the impact force is consumed again, and the column has a reverse bend to the inside of the bridge, which can effectively prevent vehicles from rushing out of the bridge. The multiple buffers eliminate the collision force of the vehicle, and the anti-collision effect is good, which avoids the large impact force on the personnel on the vehicle, and also avoids the damage to the bridge structure. The utility model has a simple structure, most of which are prefabricated and installed, and the construction is convenient.

Further, under the synergistic effect of the rear strut and the concrete block, it can also provide a certain support for the column, avoid excessive deformation of the column, and reduce the damage to the bridge caused by the impact.

Furthermore, with the existing anti-collision bridge railings, once the accident occurs at night, it is almost impossible for the operation and maintenance management department to know where the accident occurred at the first time, and it is impossible to carry out relevant rescue measures, which will further deteriorate the consequences of the accident. The problem. In the utility model, a pressure sensor and a signal transmitting device are arranged, and the pressure sensor receives the pressure transmitted by the concrete block pre-embedded connecting piece, and transmits the signal to the signal transmitting device, and the signal transmitting device is based on the magnitude of the pressure received by the pressure sensor. By sending different levels of early warning signals, the emergency can be reported as soon as possible, and the traffic operation management center can take relevant rescue measures in time to reduce the harm of the accident.

Description of drawings

Fig. 1 is the cross-sectional view of the structure of the present utility model;

Fig. 2 is the front view of the structure of the present utility model;

3 is a schematic diagram of the steel strand anchoring device of the present invention;

Fig. 4 is the schematic diagram of the early warning device of the present invention;

The meaning of each label in the attached drawing: 1-upright column, 2-steel mesh bolt, 3-pin, 4-pre-embedded connection piece of concrete block, 5-early warning device, 6-bridge deck pavement, 7-rear brace , 8- Concrete Block, 9- Steel Strand, 10- Column Embedded Bolts, 11- Cast-in-place Concrete, 12- Elastic Material, 13- Steel Wire Mesh, 14- Mandrel, 15- Signal Transmitting Device, 16- Solar Energy Charging board, 17-pressure sensor, 18-strand anchor, 19-strand anchor.

Detailed ways

In order to make the technical means realized by the present invention, the goals and effects easily understood, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings.

A bridge anti-collision railing with early warning includes an anti-collision device and an early warning device 5 .

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the anti-collision device includes a column 1 , a steel wire mesh 13 , an elastic material 12 , a steel strand 9 , a rear strut 7 , a concrete block 8 , and a top rod 14 , strand anchors 18 and strand anchors 19 . A plurality of uprights 1 are arranged in sequence along the longitudinal bridge direction, and the bottom of the uprights 1 is bolted to the deck pavement 6 upstream and downstream of the bridge through pre-embedded upright bolts 10 embedded in the bridge deck, and above the pre-embedded bolts 10 of the uprights Covered with cast-in-place concrete 11, the top rods 14 are connected to the tops of the columns 1 by welding; the parts of the columns 1 above the bridge deck pavement layer 6 are arc-shaped and bend toward the inside of the bridge.

As shown in Figures 1 and 2, the wire mesh 13 is divided into an inner wire mesh and an outer wire mesh, the bottom end of the inner wire mesh is bolted to the bottom end of each column 1 through wire mesh bolts 2, and the top end of the inner wire mesh Bolted to the top of each column 1 by wire mesh bolts 2; the outer wire mesh is bolted to the inner side of each column 1 from the bottom end to the top through a plurality of wire mesh bolts 2, so that the inner wire mesh and the outer wire mesh are bolted to the inner side of each column 1. A accommodating space is formed between them, and the elastic material 12 is filled in the accommodating space between the inner steel mesh and the outer steel mesh. The elastic material 12 can be made of rubber or plastic.

As shown in FIG. 2 and FIG. 3 , a plurality of the steel strands 9 are provided, and a plurality of reserved openings are arranged on the column 1 from bottom to top at intervals. The number of the steel strands 9 is the same as the reserved openings on a single column 1 The number is the same, and the two are in one-to-one correspondence, each steel strand 9 sequentially passes through the corresponding reserved openings of each column 1 and is anchored to the steel strand anchoring devices 19 of the bridge abutments at both ends through the steel strand anchors 18. The steel strand anchoring device is pre-buried on the abutments at both ends of the bridge.

The concrete block 8 is poured on the bridge deck pavement 6 and is located outside the column 1 . One end of the rear strut 7 is connected to the upright column 1 through the pin 3, and the other end is connected to the concrete block pre-embedded connector 4 through the pin 3, and the concrete block pre-embedded connector 4 is pre-embedded in the concrete block 8.

As shown in FIG. 4 , the early warning device 5 includes a signal transmitting device 15, a solar charging panel 16 and a pressure sensor 17. The pressure sensor 17 is used to collect the pressure transmitted by the concrete block embedded connector 4, and the collected pressure signal The signal is transmitted to the signal transmitting device 15, and the signal transmitting device 15 transmits an early warning signal to the alarm according to the received pressure signal. The signal transmitting device 15 is controlled by the STM32F429 single-chip microcomputer, and is arranged at the mid-span position of the bridge. The solar charging plate 16 is arranged in a safe and sunny position, that is, the outside of the bridge is facing the sun, and is used to provide power to the pressure sensor 17 and the signal transmitting device 15. . The pressure sensor 17 is arranged under the concrete block embedded connecting piece 4 . The alarm can be set in the traffic operation management center.

During the specific implementation of the device of the present invention, the column 1 is bolted through the column pre-embedded bolts 10, and is covered with a certain thickness of cast-in-place concrete 11, and the connection is fastened and will not be easily knocked down. When the vehicle is out of control, first the steel mesh 13 will consume part of the kinetic energy of the impact of the vehicle, then the elastic material 12 will absorb part of the energy, and then most of the impact force will be consumed by the plastic deformation of the column 1 and the steel strand 9, and finally, the rear support Under the coordinated action of the rod 7 and the concrete block 8 , it can also provide a certain support for the column, and control the excessive deformation of the column 1 . And the column 1 has a reverse bend to the inside of the road, which can effectively prevent vehicles from rushing out of the bridge. At the same time, the pressure sensor 17 receives the pressure transmitted by the concrete block embedded connector 4, and transmits this signal to the signal transmitting device 15, and the signal transmitting device 15 transmits different levels according to the pressure on the pressure sensor 17. warning signs. The traffic operation management center can take relevant rescue measures in time to reduce the accident hazards.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention The utility model will also have various changes and improvements, which all fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims.

Claims (10)

1. A bridge anti-collision railing is characterized by comprising upright posts (1), a steel wire mesh (13), an elastic material (12), steel strands (9), a steel strand anchoring device (19) and ejector rods (14);

a plurality of upright posts (1) are sequentially arranged on one side of the bridge along the longitudinal bridge direction, the bottoms of the upright posts (1) are fixed on the bridge, and the tops of the upright posts (1) are sequentially connected through ejector rods (14); the part of the upright post (1) above the bridge is arc-shaped and is bent towards the inner side of the bridge;

the steel wire mesh (13) is divided into an inner steel wire mesh and an outer steel wire mesh, the bottom end of the inner steel wire mesh is fixed to the bottom end of each upright post (1), and the top end of the inner steel wire mesh is fixed to the top end of each upright post (1); the outer steel wire meshes are fixed on the inner side surfaces of the stand columns (1) from the bottom ends to the top ends, an accommodating space is formed between the inner steel wire meshes and the outer steel wire meshes, and the elastic material (12) is filled in the accommodating space between the inner steel wire meshes and the outer steel wire meshes;

the steel strand wires (9) are arranged in a plurality of numbers, each steel strand wire (9) is sequentially connected with each upright post (1), and the two ends of each steel strand wire (9) are fixed on the steel strand wire anchoring devices (19).

2. The bridge collision rail of claim 1, further comprising a rear stay (7) and a concrete stop (8);

concrete dog (8) set up on bridge deck pavement layer (6), and are located the stand (1) outside, back vaulting pole (7) one end is connected in stand (1), and the other end is connected in pre-buried concrete dog pre-buried connecting piece (4) in concrete dog (8).

3. The bridge collision rail of claim 2, further comprising a signal emitting device (15) and a pressure sensor (17); the pressure sensor (17) is used for collecting the pressure transmitted by the concrete stop block embedded connecting piece (4), the collected pressure signals are transmitted to the signal transmitting device (15), and the signal transmitting device (15) transmits early warning signals to the alarm according to the received pressure signals.

4. The bridge anti-collision rail according to claim 3, wherein the pressure sensor (17) is arranged below the concrete stop block embedded connector (4).

5. The bridge anti-collision rail according to claim 3, characterized by further comprising a solar charging panel (16), wherein the solar charging panel (16) is used for supplying power to the pressure sensor (17) and the signal transmitting device (15).

6. The bridge collision rail of claim 3, characterized in that the signal emitting device (15) is controlled by a STM32F429 single chip microcomputer.

7. A bridge collision rail according to claim 3, characterized in that the signal emitting device (15) is arranged at a bridge span position.

8. The bridge collision rail of claim 1, wherein the resilient material (12) is rubber or plastic.

9. The bridge anti-collision rail according to claim 1, characterized in that the bottom of the upright (1) is bolted to the deck pavement layer (6) by means of pre-embedded upright pre-embedded bolts (10) and the concrete (11) is cast in place above the pre-embedded upright bolts (10).

10. The bridge anti-collision railing of claim 1, characterized in that a plurality of reserved openings are arranged on the upright posts (1) at intervals from bottom to top, the number of the steel strands (9) is the same as that of the reserved openings on a single upright post (1), the steel strands are in one-to-one correspondence with each other, and each steel strand (9) passes through the corresponding reserved opening of each upright post (1) in sequence and is anchored on the steel strand anchoring device (19) through the steel strand anchorage device (18).

Images